NO303660B1 - Method and system of quadrature modulation and digital-to-analog conversion - Google Patents

Method and system of quadrature modulation and digital-to-analog conversion

Info

Publication number
NO303660B1
NO303660B1 NO964715A NO964715A NO303660B1 NO 303660 B1 NO303660 B1 NO 303660B1 NO 964715 A NO964715 A NO 964715A NO 964715 A NO964715 A NO 964715A NO 303660 B1 NO303660 B1 NO 303660B1
Authority
NO
Norway
Prior art keywords
digital
analog conversion
quadrature modulation
quadrature
modulation
Prior art date
Application number
NO964715A
Other languages
Norwegian (no)
Other versions
NO964715L (en
NO964715D0 (en
Inventor
Knut Rimstad
Alv I Aarskog
Original Assignee
Nera Asa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nera Asa filed Critical Nera Asa
Priority to NO964715A priority Critical patent/NO303660B1/en
Publication of NO964715D0 publication Critical patent/NO964715D0/en
Priority to PCT/NO1997/000291 priority patent/WO1998020657A1/en
Priority to EP97913541A priority patent/EP0944978A1/en
Priority to US09/297,276 priority patent/US6744825B1/en
Priority to AU50705/98A priority patent/AU5070598A/en
Publication of NO964715L publication Critical patent/NO964715L/en
Publication of NO303660B1 publication Critical patent/NO303660B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/50—Digital/analogue converters using delta-sigma modulation as an intermediate step
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3015—Structural details of digital delta-sigma modulators
    • H03M7/302—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M7/3024—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M7/3028—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a single bit one
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3015—Structural details of digital delta-sigma modulators
    • H03M7/3031—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path
    • H03M7/3033—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator having a higher order loop filter in the feedforward path, e.g. with distributed feedforward inputs
    • H03M7/304—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator having a higher order loop filter in the feedforward path, e.g. with distributed feedforward inputs with distributed feedback, i.e. with feedback paths from the quantiser output to more than one filter stage
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3015—Structural details of digital delta-sigma modulators
    • H03M7/3031—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path
    • H03M7/3042—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator being of the error feedback type, i.e. having loop filter stages in the feedback path only

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
NO964715A 1996-11-07 1996-11-07 Method and system of quadrature modulation and digital-to-analog conversion NO303660B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NO964715A NO303660B1 (en) 1996-11-07 1996-11-07 Method and system of quadrature modulation and digital-to-analog conversion
PCT/NO1997/000291 WO1998020657A1 (en) 1996-11-07 1997-11-05 A method and system for quadrature modulation and digital-to-analog conversion
EP97913541A EP0944978A1 (en) 1996-11-07 1997-11-05 A method and system for quadrature modulation and digital-to-analog conversion
US09/297,276 US6744825B1 (en) 1996-11-07 1997-11-05 Method and system for quadrature modulation and digital-to-analog conversion
AU50705/98A AU5070598A (en) 1996-11-07 1997-11-05 A method and system for quadrature modulation and digital-to-analog conversion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO964715A NO303660B1 (en) 1996-11-07 1996-11-07 Method and system of quadrature modulation and digital-to-analog conversion

Publications (3)

Publication Number Publication Date
NO964715D0 NO964715D0 (en) 1996-11-07
NO964715L NO964715L (en) 1998-05-08
NO303660B1 true NO303660B1 (en) 1998-08-10

Family

ID=19900015

Family Applications (1)

Application Number Title Priority Date Filing Date
NO964715A NO303660B1 (en) 1996-11-07 1996-11-07 Method and system of quadrature modulation and digital-to-analog conversion

Country Status (5)

Country Link
US (1) US6744825B1 (en)
EP (1) EP0944978A1 (en)
AU (1) AU5070598A (en)
NO (1) NO303660B1 (en)
WO (1) WO1998020657A1 (en)

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Publication number Priority date Publication date Assignee Title
DE69838216T2 (en) * 1998-11-03 2008-02-21 Freescale Semiconductor, Inc., Austin data converters
JP4359864B2 (en) * 2000-04-03 2009-11-11 日本ビクター株式会社 Orthogonal frequency division multiplexing apparatus and orthogonal frequency division multiplexing method
EP1168632A1 (en) * 2000-06-28 2002-01-02 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Communication device with configurable sigma-delta modulator
JP3836019B2 (en) * 2001-11-21 2006-10-18 松下電器産業株式会社 Reception device, transmission device, and transmission method
WO2003069772A2 (en) * 2002-02-15 2003-08-21 Koninklijke Philips Electronics N.V. Digital modulator
US7953174B2 (en) * 2002-03-20 2011-05-31 The Regents Of The University Of California Radio transmission frequency digital signal generation
WO2004039021A1 (en) * 2002-10-25 2004-05-06 The Trustees Of Columbia University In The City Of New York Time encoding and decoding of a signal
US7136430B2 (en) 2003-03-31 2006-11-14 Nortel Networks Limited Digital receiver and method
US6987953B2 (en) 2003-03-31 2006-01-17 Nortel Networks Limited Digital transmitter and method
WO2008151137A2 (en) * 2007-06-01 2008-12-11 The Trustees Of Columbia University In The City Of New York Real-time time encoding and decoding machines
WO2009006405A1 (en) 2007-06-28 2009-01-08 The Trustees Of Columbia University In The City Of New York Multi-input multi-output time encoding and decoding machines
US8755447B2 (en) * 2010-12-22 2014-06-17 Shure Acquisition Holdings, Inc. Wireless audio equipment using a quadrature modulation system
WO2012109407A1 (en) 2011-02-09 2012-08-16 The Trustees Of Columbia University In The City Of New York Encoding and decoding machine with recurrent neural networks
US9864045B2 (en) * 2012-10-08 2018-01-09 Mbda Uk Limited Radar receivers
EP3068044A1 (en) * 2015-03-11 2016-09-14 Nxp B.V. Module for a radio receiver
US10680863B2 (en) * 2015-03-31 2020-06-09 Sony Corporation Modulation apparatus
US9978194B2 (en) * 2015-12-22 2018-05-22 Schlage Lock Company Llc Low power credential detection device for access control system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4626803A (en) * 1985-12-30 1986-12-02 General Electric Company Apparatus for providing a carrier signal with two digital data streams I-Q modulated thereon
GB8912780D0 (en) * 1989-06-02 1989-07-19 Gen Electric Co Plc Analogue to digital converters
US6230255B1 (en) * 1990-07-06 2001-05-08 Advanced Micro Devices, Inc. Communications processor for voice band telecommunications
JPH07118651B2 (en) 1990-11-22 1995-12-18 ヤマハ株式会社 Digital-analog conversion circuit
US5410750A (en) * 1992-02-24 1995-04-25 Raytheon Company Interference suppressor for a radio receiver
US5530722A (en) 1992-10-27 1996-06-25 Ericsson Ge Mobile Communications Inc. Quadrature modulator with integrated distributed RC filters
US5588025A (en) * 1995-03-15 1996-12-24 David Sarnoff Research Center, Inc. Single oscillator compressed digital information receiver
US5621345A (en) 1995-04-07 1997-04-15 Analog Devices, Inc. In-phase and quadrature sampling circuit
US5512865A (en) 1995-05-08 1996-04-30 National Semiconductor Corporation Digital oversampled quadrature modulator
FI98020C (en) * 1995-06-06 1997-03-25 Nokia Mobile Phones Ltd Digital signal modulation method and modulator
US5923712A (en) * 1997-05-05 1999-07-13 Glenayre Electronics, Inc. Method and apparatus for linear transmission by direct inverse modeling
US6317468B1 (en) * 1998-06-17 2001-11-13 Rockwell Collins IF exciter for radio transmitter

Also Published As

Publication number Publication date
NO964715L (en) 1998-05-08
EP0944978A1 (en) 1999-09-29
NO964715D0 (en) 1996-11-07
US6744825B1 (en) 2004-06-01
WO1998020657A1 (en) 1998-05-14
AU5070598A (en) 1998-05-29

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